肺腺癌患者血清IGF-1及IGFBP-3的测定及其与化疗疗效的关系

目的探讨肺腺癌患者血清中胰岛素样生长因子-1(IGF-1)和胰岛素样生长因子结合蛋白-3(IGFBP-3)的表达水平并比较分析其与化疗疗效的关系。方法采用ELISA法检测28例肺腺癌患者(A组),26例肺部良性疾病患者(B组)和20例健康人(C组)血清中IGF-1和IGFBP-3的含量。结果 A、B、C组血清IGF-1水平分别为(667.19±105.36)μg/L、(448.53±121.04)μg/L和(398.45±111.46)μg/L,A组明显高于B、C组,差异有统计学意义(P<0.05);B组与C组比较差异无统计学意义(P>0.05)。A、B、C组血清IGFBP-3水平分别为(3 003.17±998.23)μg/L、(3 875.43±1 017.43)μg/L和(3 964.53±1 089.73)μg/L,A组明显低于B、C组,差异有统计学意义(P<0.05);B组与C组比较差异无统计学意义(P>0.05)。12例化疗有效的患者,化疗2周期后IGF-1水平较化疗前降低,而IGFBP-3水平则较化疗前升高,但差异均无统计学意义(P>0.05)。结论血清IGF-1和IGFBP-3水平在肺腺癌的辅...     

IGF-1、IGFBP-3在儿童生长激素缺乏症诊断和疗效判断中的应用

目的探讨胰岛素样生长因子1(IGF-1)及其结合蛋白3(IGFBP-3)在儿童生长激素缺乏症(GHD)诊断及疗效判断中的价值。方法68例GHD患儿予以国产0.1 IU/(kg.d)r-hGH治疗12个月,于治疗前及治疗后3、6、12个月分别测定身高、体重、骨龄及血清IGF-1、IGFBP-3,并与60例正常儿童进行对照。结果GHD患儿血清IGF-1和IGFBP-3水平明显低于正常对照组(P均<0.01);r-hGH治疗后身高增长速度明显加快,血清IGF-1、IGFBP-3水平显著升高;治疗前血清IGF-1与治疗6、12个月时的生长速度(GV6,GV12)呈负相关(r=-0.72-、0.78,P均<0.01);治疗3个月时IGFBP-3水平变化与GV6、GV12呈正相关(r=0.82、0.80,P均<0.01)。结论IGF-1、IGFBP-3可用于儿童GHD的诊断及疗效预测。     

结直肠腺瘤患者血清IGF-1和IGFBP-3的变化及其临床意义

目的:研究血清胰岛素样生长因子1(insulin-like growth factor1,IGF-1)和胰岛素样生长因子结合蛋白3(insulin-like growth factor binding protein3,IGFBP-3)在结直肠腺瘤患者中的变化及临床意义.方法:采用放射免疫法和免疫放射法分别检测120例结直肠腺瘤患者、48例结直肠癌患者及34例健康人外周血清IGF-1和IGFBP-3表达水平.结果:血清IGF-1和IGF-1/IGFBP-3比值在结直肠癌组(247.35±60.77;0.063±0.010)、腺瘤性息肉组(224.75±69.45;0.055±0.010)及健康对照组(195.39±63.37;0.047±0.013)依次降低,前两组明显高于后组,差异有统计学意义(P<0.05).腺瘤性息肉患者血清IGF-1、IGFBP-3水平及IGF-1/IGFBP-3比值与患者的性别、年龄、吸烟饮酒情况及肿瘤家族史临床指标间均无统计学意义;与息肉大小、数量、部位、组织学分类也无统计学意义.血清IGF-1和IGF1/IGFBP-3比值在结直肠癌组(247.35±60.77;0.063±0.010)、进展期腺瘤组(235.81±73.72;0.056±0.011)及早期腺瘤组(208.15±59.44;0.052±0.008)依次降低,且前两组较后组比,差异有显著性(P<0.05).结直肠腺瘤性息肉患者血清IGF-1和IGFBP-3呈正相关(r=0.796,P<0.001).结论:血清IGF-1和IGF-1/IGFBP-3比值增高可能在结直肠腺瘤癌变中起一定作用,对适龄人群行血清GF-1和IGF-1/IGFBP-3检测可以简单筛选有息肉恶变倾向者.     

食管癌及胃癌患者化疗前后血清IGF-1、IGF-2、IGFBP-3水平检测

采用ELISA法检测70例食管癌及胃癌患者化疗前及化疗后6周血清中人胰岛素样生长因子(IGF-1、IGF-2)及胰岛素样生长因子结合蛋白-3(IGFBP-3)水平.发现化疗有效组及化疗无效组化疗前血清IGF-1、IGF-2、IGFBP-3水平与正常对照组比较均有统计学差异;与化疗前比较,化疗有效组化疗后IGF-1明显降低、IGFBP-3明显升高,而化疗无效组化疗后IGF-1明显升高、IGFBP-3明显降低.认为血清IGF-1水平降低、IGFBP-3水平升高与食管癌、胃癌化疗疗效呈正相关,可作为预测和评价化疗疗效的指标之一.     

62例2型糖尿病患者血IGF-1、IGFBP-3水平测定及与糖尿病视网膜病变的相关性

用ELASA法对62例2型糖尿病患者（糖尿病组）及30例健康人（对照组）进行血胰岛素样生长因子-1（IGF-1）、胰岛素样生长因子结合蛋白-3（IGFBP-3）及空腹血糖（FPG）、糖化血红蛋白（HbA1c）水平测定,分析IGF-1、IGFBP-3与糖尿病视网膜病变（DR）的相关性。结果 糖尿病组血IGF-1、IGFBP-3水平显著低于对照组（P〈0.01、0.05）,其中合并增殖性DR者显著高于非增殖性DR者（P〈0.05）;血IGF-1与IGFBP-3水平呈正相关（r^2=0.71,P〈0.01）,糖尿病组IGF-1与HbA1c呈正相关（r^2=0.31,P〈0.01）。认为IGF-1及IGFBP-3可能参与了糖尿病DR的发生和发展。     

慢性心力衰竭患者血清胰岛素样生长因子-1及其结合蛋白的变化及意义

目的 通过对慢性心力衰竭患者血清中胰岛素样生长因子（insulin-like growth factor,IGF）-1及其相关结合蛋白的浓度测定,研究IGF-1及其相关结合蛋白对慢性心力衰竭的影响.方法 选取2012年6月至2013年12月江西省人民医院心内科慢性心力衰竭患者184例,按纽约心脏病协会心功能分级分为3组（心功能Ⅱ级组、Ⅲ级组和Ⅳ级组）,并选取正常人群63例作为对照组,测定其血清总IGF-1,游离IGF-1（Free IGF-1）、IGF结合蛋白（insulin-like growth factor-binding protein,IGFBP）-1,IGFBP-3浓度.对各组数据进行统计学分析,比较各组之间的血清总IGF-1,Free IGF-1、IGFBP-1,IGFBP-3浓度差异.结果 心功能Ⅳ级组血清总IGF-1,FreeIGF-1,IGFBP-3浓度明显高于心功能Ⅲ级组,心功能Ⅲ级组血清总IGF-1,Free IGF-1,IGFBP-3浓度明显高于心功能Ⅱ级组,差异有统计学意义（P＜0.01）.结论 血清IGF-1浓度随着慢性心力衰竭患者心功能变差而升高,说明IGF-1对患者心功能的恢复可能有明显的促进作用.     

IGF-1及IGFBPs与糖尿病视网膜病

研究表明糖尿病视网膜病(DR)患者血清总胰岛素样生长因子(IGF)-1增高而游离IGF-1减少,玻璃体内IGF-1及IGF结合蛋白(IGFBP)1、3水平均增高,其他IGFBPs水平也发生改变。IGF-1及IGFBPs通过促进内皮细胞增殖、影响内皮细胞凋亡及影响周细胞功能等参与了新生血管形成过程。生长抑素类似物、生长激素受体拮抗剂、人重组IGF-1(rhIGF-1)、rhIGF-1-IGFBP-3混合制剂以及IGF-1受体拮抗剂等在对DR的治疗及预防方面的作用受到人们的关注。     

血清IGF-Ⅰ、IGF-BP3及GH水平对急性白血病影响的研究

目的：揭示血清胰岛素样生长因子(IGF—Ⅰ)、胰岛素样生长因子结合蛋白3(IGF—BP3)、生长激素(GH)水平对急性白血病(AL)的发生、病情变化、治疗及预后分析的作用。方法：采用放射免疫分析法测定38例初治AL、l6例化疗后完全缓解(CR)的AL患者和l0例健康对照者血清IGF—Ⅰ、IGF—BP3、GH水平及外周血白细胞计数、原始细胞百分比和骨髓原始细胞百分比。结果：①治疗前急性非淋巴细胞白血病(ANNL)与急性淋巴细胞白血病(ALL)患者血清IGF—Ⅰ水平均低于CR组与正常对照组(P＜0．05或P＜0．01)。②治疗前ANNL与ALL患者血清IGF—BP3水平均低于CR组与健康对照组(P＜0．05或P＜0．01)。③初治AL组、缓解组和健康对照组比较，血清GH水平差异无显著性意义(P＞0．05)。结论：血清IGF—Ⅰ、IGF—BP3、GH水平对急性白血病的发生、病情变化、治疗及预后分析有重要的临床意义。     

IGF1及IGFBP3在肿瘤中的研究进展

胰岛素样生长因子(IGF)家族在细胞的增殖和分化中起着重要的作用,其中IGF1是一个重要的调控因子,通过与其受体结合发挥生物学作用,而胰岛素样生长因子结合蛋白3(IGFBP3)能够阻滞IGF1与其受体结合而抑制IGF1的作用。对恶性细胞而言,IGF1是很强的丝裂原,并具有抗凋亡作用。研究肿瘤组织中IGF1和IGFBP3的水平有助于肿瘤的诊断、治疗及预后。     

IGF-1、IGF-BP-1、IGF-BP-3与糖尿病及糖尿病微血管并发症

糖尿病影响循环中胰岛素样生长因子的水平和活性,不同类型的糖尿病对胰岛素样生长因子活性的影响是不同的.糖尿病患者体内胰岛素样生长因子的紊乱,可能参与糖尿病肾病、糖尿病视网膜病变的发生、发展.胰岛素样生长因子结合球蛋白-1可能对微血管病变起保护作用,胰岛素样生长因子结合球蛋白-3参与微血管病变的发病机制不明.     

Possible roles of insulin,IGF-1 and IGFBPs in initiation and progression of colorectal cancer

AIM: To investigate the roles of serum insulin, insulinlike growth factor-1(IGF-1), and insulin-like growth factor binding proteins(IGFBPs) in the initiation and progression of colorectal cancer. METHODS: We determined serum insulin, IGF-1 and IGFBPs levels in 615 colorectal cancer patients and 650 control healthy donors by enzyme-linked immunosorbent assay(ELISA). In the meantime, their body mass index(BMI) and waist-to-hip ratio(WHR) were measured. RESULTS: Serum levels of insulin and IGF-1 as well as IGF-1/IGFBP-3 ratio in pre-operation patients were significantly elevated, but the level of IGFBP-3 was significantly decreased compared with normal controls and post-operation patients(P < 0.05 and P < 0.001,respectively). There is no significant difference(P > 0.05) in the levels of insulin, IGF-1, IGFBP-1, IGFBP-3 and IGF-1/IGFBP-3 between the patients with and without hepatic as well as distal abdominal metastases. WHR and BMI of colon cancer patients were positively and significantly correlated with the levels of insulin and IGF-1/IGFBP-3. In contrast, WHR and BMI were negatively correlated with IGFBP-3 level. CONCLUSION: The elevation of insulin, IGF-1 as well as IGF-1/IGFBP-3 ratio and the reduction of IGFBP-3 may be related to the initiation of colorectal cancer, but they are not related to the progression and outcome of the disease.     

老年住院病人血清胰岛素样生长因子-1、胰岛素样生长因子结合蛋白-3与衰弱的相关性研究

目的探讨老年住院病人血清胰岛素样生长因子-1(IGF-1)、胰岛素样生长因子结合蛋白-3(IGFBP-3)水平与衰弱的相关性。方法纳入2018年1月至2019年6月老年医学科年龄≥65岁的住院病人195例,进行衰弱表型评估和老年综合评估,采用ELISA法检测血清IGF-1、IGFBP-3水平,分析其与衰弱的相关性。结果与无衰弱、衰弱前期病人相比,衰弱病人血清IGF-1、IGFBP-3水平显著下降,差异有统计学意义(P<0.05)。有序多分类Logistic回归分析显示血清IGF-1(OR=0.943,95%CI0.894~0.994,P<0.05)、IGFBP-3(OR=0.397,95%CI0.259~0.607,P<0.001)水平与衰弱显著相关。结论血清IGF-1、IGFBP-3水平与老年住院病人衰弱显著相关,可能成为老年人衰弱的预测指标。     

血清胰岛素样生长因子及其结合蛋白诊断儿童生长激素缺乏症的价值

为了解血清胰岛素样生长因子1（IGF－1），胰岛素样生长因子结合蛋白－3（IGFBP－3）浓度与生长激素缺乏症（GHD）患儿生长激素（GH）激发试验中血清生长激素峰值的关系，以确定血清IGF－1，IGFBP－3浓度诊断GHD的价值，为其代替GH激发试验提供依据，选择GHD患儿62例（男39例，女23例）为GHD组，60例健康儿童（男38例，女22例）为对照组。分别用放射免疫分析（RIA）法，免疫放射分析（IRMA）法检测GHD组血清IGF－1，IGFBP－3浓度，同时被GH激发试验，测定血清GH峰值，并比较其与IGF－1，IGFBP－3的关系，测定对照组血清IGF－1，IGFBP－3。结果显示，GHD组血清IGF－1，IGFBP－3均显著低于对照组（t分别为3.116,11.579,p均＜0．01）；GHD组血清IGF－1，IGFBP－3浓度与GH激发试验中的GH峰值呈显著正相关（r分别为。331，0。347，P均＜0．01）；GHD组血清IGF－1，IGFBP－3降低的阳笥率分别为97．58％，98．38％，与激发试验的阳性率（100％），比较无统计学意义（x^2分别为.3074,2.033,P均＞0．05）。表明血清中IGF－1，IGFBP－3浓度检测对诊断GHD有重要价值，认为检测血清中IGF－1，IGFBP－3浓度可以替代GH激发试验。     

Effects on glucose tolerance,insulin secretion,insulin-like growth factor 1 and its binding protein,IGFBP-1, in a randomized controlled diet and exercise study in healthy,middle-aged men

Abstract. Objectives . To study the effects of advice on diet, exercise and their combination on oral glucose tolerance (OGTT), insulin secretion, insulin-like growth factor-1 (IGF-1) and its binding protein, IGFBP-1. Design . A 6-month, randomized, controlled intervention study. Setting . Primary health care centres in Sollentuna, Stockholm and the Department of Medicine, Karolinska Hospital, Stockholm, Sweden. Subjects . One hundred and fifty-seven normoglycaemic healthy men, mean age 46 years, range 35–60 years, with slightly to moderately raised cardiovascular risk factors. Interventions . Advice on diet (D, n = 40), exercise (E, n = 39) a combination of both (DE, n = 39) and a control group (C. n = 39). Main outcome measures . An OGTT, insulin secretion, IGF-1 and its binding protein, IGFBP-1. Results . The number of pathological OGTTs in the intervention groups decreased from 42/118 to 33/118 whilst the number in the control group did not change. Fasting insulin levels decreased in groups E and DE from 8.8–7.4 mU L^?1 (P < 0.01) and from 8.3–6.7 mU L^?1 (P < 0.01), respectively. Accordingly, the insulin area under the curve decreased from 5278 to 4828 (P < 0.05) in group E, and from 5482 to 4809 (P < 0.01) in group DE. IGF-1 only increased in group D. The most prominent changes were noted for IGFBP-1, which increased in all three intervention groups and to the highest degree in group DE (from 33.7–42.6 μg L^?1, P < 0.001). Conclusions . A combination of increased exercise and improved diet, as well as increased exercise alone, favourably affect glucose and insulin homeostasis in middle-aged men with moderately elevated cardiovascular risk factors. The most marked changes were noted for IGFBP-1, possibly suggesting a decreased insulin secretion and an enhanced insulin sensitivity.     

肺癌患者胰岛素样生长因子1和胰岛素样生长因子结合蛋白3的表达及其临床意义

目的 分析肺癌患者血清和支气管肺泡灌洗液（BALF）中胰岛素样生长因子1（IGF-1）、胰岛素样生长因子结合蛋白3（IGFBP-3）的表达,探讨其在肺癌诊断和预后中的临床意义.方法 运用免疫放射法检测80例非小细胞肺癌患者和14名健康者（对照组）外周血血清与BALF中IGF-1、IGFBP-3的水平.结果 肺癌组血清和BALF中IGF-1表达显著高于对照组（P＜0.01）,IGFBP-3的表达显著低于对照组（P＜0.05）,同时IGF-1/IGFBP-3升高（P＜0.01）.IGF-1、IGF-1/IGFBP-3在有淋巴结转移、远处转移和TNMⅢ～Ⅳ的肺癌患者血清、BALF中明显高于无转移者和TNMⅠ～Ⅱ期者（P＜0.05）,而IGFBP3下降明显高于无转移者及TNMⅠ～Ⅱ期者（P＜0.05）.肺癌组血清IGF-1、IGFBP-3浓度与BALF中的浓度呈正相关（P ＜0.01）;患者血清BALF中IGF-1与IGFBP-3浓度呈负相关（P＜0.05）.结论 非小细胞肺癌患者血清和支气管肺泡灌洗液中IGF-1、IGFBP-3的表达对肺癌的诊断、判断预后有重要临床意义.     

Evaluation of serum insulin-like growth factor 1 and its significance in thyroid cancer: An observational study

Serum insulin-like growth factor 1 (IGF-1) is elevated in different cancers. However, relationships between serum IGF-1 and thyroid cancer (TC) are scarce. The present study aimed to investigate the clinical significance of serum IGF-1 in TC.Serum was collected from 124 TC patients, 50 patients with benign nodules, and 50 healthy controls. Serum IGF-1 levels were measured and compared. Relationships were investigated between IGF-1 and clinical characteristics. A receiver operating characteristic (ROC) curve was plotted to explore the diagnostic value of IGF-1 in TC.Serum IGF-1 levels were significantly higher in TC than that of healthy controls and benign nodules (P = .003; P < .001). Serum IGF-1 levels were higher in TC patients with advanced stage than early stage (P = .029). Higher serum IGF-1 levels were found in patients with lymph node metastasis present and (tumor size >1 cm) than that of patients without lymph node metastasis (P = .018) and (tumor size ≤1 cm) (P = .031). Serum IGF-1 levels were higher in patients with a solitary nodule than multinodular nodules (P = .043). The serum IGF-1 cutoff value for a TC diagnosis was 216 ng/mL with a sensitivity of 53.2%, a specificity of 74.0%, a positive predictive value (PPV) of 83.5%, and an area under the curve was of 0.71.Serum IGF-1 was significantly correlated with tumor stage, size, and lymph node metastasis. Serum IGF-1 shows great potential as a laboratory marker for TC.     

子宫肌瘤患者血清、瘤组织中IGFBP-3的表达变化及意义

目的观察子宫肌瘤患者血清及瘤组织中胰岛素样生长因子结合蛋白-3（IGFBP-3）的表达变化。方法采用ELISA法检测60例子宫肌瘤患者与60例正常妇女血清IGFBP-3，用免疫组化法检测上述60例子宫肌瘤患者子宫肌层和子宫肌瘤组织中的IGFBP-3。结果子宫肌瘤患者血清IGFBP-3水平低于正常妇女，IGFBP-3在子宫肌瘤组织中的表达较正常子宫肌层中的表达减低，P均〈0．01。结论子宫肌瘤患者血清及瘤组织中IGFBP-3表达均降低，可能与子宫肌瘤的发生、发展有关。